Home / 2,806.25-3,872.59-1,547.35

Finding the Fourth Proportional to 2,806.25, 3,872.59 and 1,547.35

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Solution

The fourth proportional to 2,806.25, 3,872.59 and 1,547.35 is: 2,135.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,806.25 : 3,872.59 = 1,547.35 : x
  2. Step 2: Convert to fraction form
    2,806.25/3,872.59 = 1,547.35/x
  3. Step 3: Cross multiply
    2,806.25x = 3,872.59 × 1,547.35
  4. Step 4: Simplify right side
    2,806.25x = 5,992,252.14
  5. Step 5: Solve for x
    x = 5,992,252.14/2,806.25
  6. Step 6: Final answer
    x = 2,135.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.